Time stamps for the different topics covered in the video: 0:34 Why do we need the feedback in Op-Amp (Negative Feedback) 3:08 Inverting Op-Amp configuration 3:47 Concept of Virtual Ground in Op-Amp (What is virtual Short) 6:38 Derivation of Inverting Op-Amp Configuration
@mr.amp00767 жыл бұрын
Next video kab ayega?? Vi... Jaldi lana...
@ALLABOUTELECTRONICS7 жыл бұрын
very soon.
@irock23826 жыл бұрын
Bohot mast Sir!!
@symbionictitan40745 жыл бұрын
Thank you sir I finally understood 👍
@tomc6425 жыл бұрын
Like all your excellent videos. I have seen this explanation of virtual ground many times, but it is always lacking something. Here the opamp is drawn with a feedback loop, but the huge gain of the open loop opamp is used to explain that the inputs are at virtual ground. Then it turns out that the gain of the opamp with feedback is by several factors smaller than the open loop gain. This would then mean that the inputs are not at virtual ground? Am I missing something in this explanaton. I like to look at it as a differential amplifier with equal bias currents in each branch, so that both inputs have the same voltage.
@MatheusSilva-dragon5 жыл бұрын
Wow, now THIS is teaching! You presented all of this so crystal clear! My teacher could learn a thing or two (or three) with you!
@garnett6575 жыл бұрын
This vid helped me out a million but lol why you guys always speaking down on the Professors tho….the learning experience is always different went learning at your own pace and time.. Like watching youtube tutorials in the comfort of Your home Versus some huge lecture room with a lecture session that cant be paused or rewind.
@asamoah-danquahstanislaw20023 жыл бұрын
yea, my teacher really needs to see this video
@vprashamshi6705 Жыл бұрын
My teacher learns from this and teaches 🤣. He himself told about that
@primevigilante72593 жыл бұрын
this man right here is saving lives with these videos.
@goyaldeekshant4 жыл бұрын
Too good. I will refer it to all my classmates.
@aanikethghosh23432 жыл бұрын
DON'T!!! Keep it to yu and surprise them 😉
@kushagraacharya46292 жыл бұрын
Hehe....you had probably lost trust in most of your friends for keeping this channel as a secret to themselves😂....
@tqaquotes93792 жыл бұрын
03:47 I was watching this video for the virtual ground concept, and I must say this part is especially good.
@himanshushekhardas17306 жыл бұрын
I can't find words to say how good your lectures are sir !!!
@NerdyCatCoffeeee2 жыл бұрын
Found my Indian guy from youtube. Thank you, dude. A lot of detail is always awesome to see
@priyanshigupta11174 жыл бұрын
Sir u explained the concept pretty well in brief period of time. In my college we had lecture of 45 min on this which u made me understood in 10 min
@anjalisinghchauhan53602 жыл бұрын
you had a lecture.*crying in corner*
@strangerguy72482 жыл бұрын
@@anjalisinghchauhan5360 You had a feminist attitude *crying in side*
@anjalisinghchauhan53602 жыл бұрын
@@strangerguy7248 dude try to understand... I'm saying we were never taught this topic in class at least they had a lecture... *crying in paris*
@akkahshhagarwaal20567 жыл бұрын
Explained in a very lucid and interesting manner. Thank you very much sir! You have uplifted the desire of learning electronics in me.
@siddhantv1 Жыл бұрын
I can't see how college professors with so many degrees can't explain the same concept as easily as you do
@ayush7800 Жыл бұрын
It's because we don't listen to the professors during class, but are very attentive while watching on yt ( as most of us are here just before exams ).
@AnjaneyaParashar Жыл бұрын
@@ayush7800 ++
@rupeshr936 Жыл бұрын
@@ayush7800 spot on reply👌
@RiddhiGupta-bc3mv Жыл бұрын
Sahi hai
@leadnitrate2194 Жыл бұрын
@@ayush7800as someone who listens to the prof, I can confirm this guy teaches better
@srivatsaa.r.99366 жыл бұрын
sir yr video on INVERTING OP_AMP IS EXCELLENT AND CLEAR. Yr special aptitude in teaching Is praise worthy. In life many will try to teach but only very few will succeed and you are no.1 amongst them. thanks s.vatsa
@Rahul_Raju5 жыл бұрын
the best tutorial on op amps ,presented in a lucid and down to earth manner.loved it. at my age of 61, i have learnt the basics in just one lesson.KEEP it up.
@footballinshorts27113 жыл бұрын
Pardon me if I sound rude ,but why did you wanna learn this at 61 years of age?
@srivatsaa.r.99366 жыл бұрын
yr video on OP_AMPLIFYER Is WELL thought and executed. the person delivering the lecture/teaching performance Is praise worthy. very clear. s.vatsa
@happytulip14513 жыл бұрын
The way of your explanation is too good sir.....thank you so much....
@ramamurthy79377 жыл бұрын
Tq very much sir please make more videos like this and help more students to have clear concept and get succeed in life tq so much
@sharvilb24203 жыл бұрын
3yrs ago video, helping me and my bois 3days bfore the exam!🙏 Hope you were our online class lecturer!👀😶❤️
@mayankmathur46673 жыл бұрын
bro i am repeating the same feat as urs let's see how it goes
@amruthas69745 жыл бұрын
I see that the concepts are explained in the description too.. thank u so much sir.. i am a btech student graduating in 2020.. i am preparing for campus placements from your video. Plz do more videos .. hats off👌
@circuitsanalytica43484 жыл бұрын
Hello Amrutha, he had explained this topic in an excellent way....
@upadyaruwanpura23 жыл бұрын
Sir, You are a life-saver.😍 I don't know why my lecturers can't explain like this.😣
@gena84145 жыл бұрын
I really understood it pretty well. Though you shouldn't have used the word "feedback" before defining it. Thanks!
@ramlenka70634 жыл бұрын
Life-saving channel, Thanks a lot
@asamoah-danquahstanislaw20023 жыл бұрын
thank you soo soo much you are really becoming one of my favorite youtube teachers.
@amulyasuryateja97013 жыл бұрын
Very much much much better than my college lectures💯💯💯 Thank you so much❤
@sais.here.58694 жыл бұрын
god bless u brother for providing free lectures
@直江狀4 жыл бұрын
Very good KZbin. You are much better than my professor. You make me understand the electronic, my professor just confuses me, maybe it is his job to confuse me
@saikatsRhythmicRiffs6 жыл бұрын
My concept is now totally clear. Thank you sir. Please release more video .
@ronjoybhowmik95356 жыл бұрын
SAIKAT DAS hope you dont get a backlog
@rahulranjan78995 жыл бұрын
@@ronjoybhowmik9535 haha
@Vaijuuuuu3 жыл бұрын
Thank you so much sir... it's really amazing...I will refer it to my classmates too..we are really lucky to have you
@hasanxnv5 жыл бұрын
you have an amazing gift of explanation. I love that
@akshayaraja1180 Жыл бұрын
Answered all my doubts without asking .tqsm …tat too one day before exam😃
@mabdulla31052 жыл бұрын
Thank you Sir, I just started in Electronic lab assistant job. It is very informative
@priyankag4065 Жыл бұрын
No boring,easy understanding 👍👍👍
@anupamchatterjee18206 жыл бұрын
kya bat sir....dhansu padhate ho app....maza a gaya
@sumathiuppari71783 жыл бұрын
Simply amazing explanation....the total concept is in simply easy way .thank you so much.....but bhaiah "I request you to explain a little bit slow"...
@Pr3kashSingh5 жыл бұрын
No video can be better than yours.. 😘
@akshatchoudhary8958 ай бұрын
Tomorrow is my ec end semester exam and i learn so much from this video
@gkspeednetinternet91606 жыл бұрын
my all doubts are gone away......excellent sir...thanku so much...
@ashjaahmedkhan32545 жыл бұрын
Bhai badiya batata he yr tu meko bhi tere jesa banna he ek no.👌✋
@vanhoangtran87832 жыл бұрын
Thank you very much, it helps me many things. I learned this at school ( and I forgot this) but thanks to your videos, I can understand this better.
@rajshukla56633 жыл бұрын
You teach better than my profs here at iit
@haritharamachandran29614 жыл бұрын
This was really helpful. I understood the concept clearly.
@saswatapatra59195 жыл бұрын
BEAUTIFUL!!! AAH maza aa gaya bhaisaab.. now how often do you see people making such types of comments on study related videos?
@pratiksingh50223 жыл бұрын
Amazingly explained sir...... thankyou 🙏🏻...keep making such videos for us
@md.mamunurrashid4664 жыл бұрын
Innovative video. It is very much helpful to understand the op-amp.
@gondukarteek17144 жыл бұрын
Superb way of teaching.. I just loved it ❤❤
@itsak42354 жыл бұрын
Awesome.... crystal clear explanation
@yashwantkumar19512 жыл бұрын
Very well explained... And presentation is also really good. Keep the good work continue 🤘
@rohithss77386 жыл бұрын
U were teaching excellently sir😍
@melvinsaji28054 жыл бұрын
SUCH A CLEAR EXPLANATION THANK YOU VERY MUCH SIR GOD BLESS 🙏 YOU
@Roger49-x712 жыл бұрын
Thanks for this very well presented & explained analysis.
@bahaatamer12455 жыл бұрын
SIMPLY AMAZING! - Please keep up the amazing work!
@hasnainali78974 жыл бұрын
Excellent vedio with concepts please write the theory in background what you are speaking 🗣️ it will help alot to make notes
@acandmishra2 жыл бұрын
Excellent explanation , really very helpful
@debabratarouth123511 ай бұрын
Amazingly explained sir, so helpful. Thank u so much.
@Brutishh7 жыл бұрын
I ‘ve seen ur 2 basic videos of Operational amplifier ..They r really good and I request you to explain by taking some problems asked in competitive exams...Plz
@ALLABOUTELECTRONICS7 жыл бұрын
Yes, if you have seen my last videos on op-amp (Integrator and Differentiator), I have taken some examples. And anyway I am going to make a dedicated video on problems based on the op-amp. But before I make that video, I will cover few topics like the gain-bandwidth product, slew rate, CMRR and offset voltages in Op-amp. So, that I can cover a variety of questions based on the op-amp.
@psrisaiteja50476 жыл бұрын
Thanks for giving clarity on inverting amplifier
@mayankgautam65273 жыл бұрын
Very well Explained. Topic become simple and interesting .
@kychemclass58502 жыл бұрын
My Op-amp fog is lifting. Thank you so much!!!!!
@tomc6425 жыл бұрын
Like all your videos. I have seen this explanation of virtual ground many times, but it is always lacking something. Here the opamp is drawn with a feedback loop, but the huge gain of the open loop opamp is used to explain that the inputs are at virtual ground. Then it turns out that the gain of the opamp with feedback is by several factors smaller than the open loop gain. This would then mean that the inputs are not at virtual ground? Probably a good explanation that would include a differential amplifier with matching, and equal branch currents is too advanced.
@SreenikethanI Жыл бұрын
same doubt!!
@shreeyashrasal85744 жыл бұрын
Awsm explanation sir👌👌 Crystal clear concept
@yadugirin25644 жыл бұрын
this is so dman good it fells like some iit teacher has taught this
@kingjibaieaieaie22795 жыл бұрын
I love you so much for explain this like a profesional !
@arjuno1953 жыл бұрын
Make more videos learning never stops🙏
@monicaarputharaj594 жыл бұрын
Suprb explanation sir...thank you👏👏
@adrishbhattacharya5083 жыл бұрын
Great lecture. Understood the concepts well
@rohitht87206 жыл бұрын
Thank u sir Ur teaching is superb
@bharammr51305 жыл бұрын
Awesome explanation sir thaks a lot.
@nikshepbangera54164 жыл бұрын
amazing stuff bu ti have a doubt.. at 4:28 .. u use the the open loop gain equation Vout = Av*Vd to prove that virtual ground is in feedback ..so it is confusing because that equation is for open loop without feedback
@shkumse7943 Жыл бұрын
Very good for techno managers who hv no time to open books and read pg to pg.
@phucnguyenhuu8046 жыл бұрын
thank you very much..the video helped me understand the theory better
@abunaser45225 жыл бұрын
I think being 180 degree out of phase and being negative is really different thing. The effect of 180 degree phase shift is the same as negative signal only for sinusidal and some symmetric signals. not all of them.
@ALLABOUTELECTRONICS5 жыл бұрын
Yes, that's true.
@bhavishnagubandi3284 жыл бұрын
I have a question, For proving the virtual ground concept we consider gain very high e.g 10^6. But by choosing different values of Ri and Rf we got gain as 2. Will this not contradict our virtual ground concept?? Please explain!!!!!!!!!!!!!!!!!!!!
@SreenikethanI Жыл бұрын
same doubt!!
@Poorvikss27 күн бұрын
Hi But to attain desired oscillation the op amp is tunes with R1 and Rf so that it's gain is silgithy more than 1 Please tell if it's correct or not?
@tpsicmin3 жыл бұрын
Thanks Sir Amazing Explanation
@VndNvwYvvSvv2 жыл бұрын
I can't understand a word of this. Maybe try an accent neutralization course? They're very common and inexpensive.
@kshitizrana95444 жыл бұрын
During derivation of virtual short why we are taking open loop gain (at 4:05)since negative feedback is already connected ,is this not a closed loop gain ??
@ALLABOUTELECTRONICS4 жыл бұрын
Just to explain the effect of the closed-loop circuit. The op-amp itself has the open-loop gain. But with external resistors, the overall gain of the entire circuit (Inverting amplifier) is reduced. I hope it will clear your doubt. If you still have any doubt, then let me know here.
@mahimakammar72333 жыл бұрын
Thank you sir. What happens if we apply negative input to the inverting terminal? Please make video on this also explaining the current directions.
@ALLABOUTELECTRONICS3 жыл бұрын
When we apply negative input (e.g -1V), and if the gain is 5 then output would be 5V. ( positive). The direction of current will get reversed.
@nishantpancholi87685 жыл бұрын
Very good job sir..!
@trinaghosh65905 жыл бұрын
Sir, your concert regarding positive feedback is wrong. Whenever feedback is fed to the non inverting terminal, that is also negative feedback. Positive feedback will make the system oscillate.
@damithaliyanage82263 жыл бұрын
Thank god u saved me! Great content!
@ayushjha46114 жыл бұрын
Video is very good all concept are clear but which software are you using for this..
@rushantthakare4 жыл бұрын
In inverting op amp configuration is close loop configuration so for the equation should we consider close loop gain or not.
@ALLABOUTELECTRONICS4 жыл бұрын
For the inverting op-amp configuration, the closed loop gain is - (Rf/R1)
@ashishrout52652 жыл бұрын
awesome video , good explanation and very helpfull.thank you
@machirajusaicharan49952 жыл бұрын
I didn't understand that at 3:11 Why the polarities of op amp are changed i.e. inverting terminal came up and non inverting terminal went down. Please clarify
@ALLABOUTELECTRONICS2 жыл бұрын
It's just for representation. While drawing the opamp symbol, you can represent either inverting or non inverting at the top and the other one at the bottom. It will not change the functionality of the circuit.
@machirajusaicharan49952 жыл бұрын
@@ALLABOUTELECTRONICS I also have a doubt sir, somewhere I have seen the symbol of op Amp in another way, inverting terminal and positive supply at top, non inverting terminal and negative supply at bottom Which is right I am totally confused at this terminals and power supplies positions Please solve my doubt
@Abhisheksharma-lk4ll5 жыл бұрын
Bhaiya mazza aa Gaya aap sae padh kae
@samarpreetsingh53185 жыл бұрын
Excellent video!👌
@Hiyori___2 жыл бұрын
Thank you so much. so well structured explanation
@naveenpunnam79424 жыл бұрын
Sir Is feedback current will flow same direction or reverse direction?
@ALLABOUTELECTRONICS4 жыл бұрын
It depends on the output voltage. If the output voltage is positive, then it will flow in the opposite direction. From Vout to ground ( From higher potential to lower potential). If Vout is negative, then feedback current will flow from node X to Vout (From 0 to Vout) I hope it will clear your doubt.
@naveenpunnam79424 жыл бұрын
@@ALLABOUTELECTRONICS It is clear thank you sir
@GR3G19875 жыл бұрын
8:55 The gain isn't 2, but -2 and the output is -2v, not 2v. Am I wrong ?
@circuitsanalytica43484 жыл бұрын
No, you are right, as the amplifier is inverting amplifier, gain is negative....
@Thegrapenape104 жыл бұрын
I'm convinced all the dislikes are college professors
@PrathamRajput-t4h4 ай бұрын
@@Thegrapenape10 😂
@sgcreations56383 жыл бұрын
Really helpful and explained very well without any confusion
@shubhamshirode59113 жыл бұрын
What is meant by negative feedback??
@yaminabatool37936 жыл бұрын
Really helpful description.. Thanks 👍
@TheHonouredOne076 ай бұрын
5:33 Virtual Short
@zohirbailiche73226 жыл бұрын
thank you so much .... i've wasted lot of hours in class for nothing
@himanshushekhardas17306 жыл бұрын
Me too, not able to understand anything teachers are teaching in class for days but my giving only few minutes I get crystal clear concepts !!!
@noweare16 жыл бұрын
@@himanshushekhardas1730 me too ! I took this in college in the 1980's and my teacher could not explain it well. I don't really think they knew how an op amp worked. This channel is excellent. I wish I was going through school during the present time.
@srishtigupta49827 ай бұрын
AMAZING !!!
@kushagrapunia3 жыл бұрын
Amazingly explained
@prochchhannomahmad82983 жыл бұрын
isn't micro 10^-6?
@abuanas85695 жыл бұрын
Very fine explanation.Thank you so much
@harshatpant9 ай бұрын
Thanks for the excellent videos. One question here - for the gain to be Rf/R1, it is assumed the OPAMP is working in the linear region. Does this imply that this is only true as long as the input voltage level for V1 is small enough that the output of the OPAMP does not saturate?
@ALLABOUTELECTRONICS9 ай бұрын
Yes, that’s true. For example, for one opamp, if the supply voltage is +-15v and the gain of the opamp is 20. ( assuming you have selected Rf and R1 accordingly) then for input of 1v, you won’t get -20V as an output. The output will get saturated at -15V or even at lesser voltage.
@amitsubhash15862 жыл бұрын
Thank you for the consice and clear answers, it helped me so i hope this comment helps you in the algorithm game)
@shiprabhanu95626 жыл бұрын
How can we assume the input terminals as short circuited when op_amp is having high input impedance???🤔
@shiprabhanu95626 жыл бұрын
That should be open circuited because of high input impedance
@ALLABOUTELECTRONICS6 жыл бұрын
It's virtual short. It's not actual short. Because of the very high gain of the op-amp, the difference between the two input signal is very low. Even if op-amp has very high input impedance, it is possible to have both terminals are at almost same potential, because of very high gain of op-amp. Of, course ideally current will not flow between the two terminals. So, we can assume that there is virtual short between the two terminal. It's not actual short between the terminal. I hope it will clear your doubt.
@PropheticNomad6 жыл бұрын
It's only when you have negative feedback that the virtual ground presents itself. The circuitry inside will try to drive the node to equal the other. Often, it is very good at doing this. So good that you can say there is not a potential difference between inputs. They are "virtually" the same
@mohdaqibminai59756 жыл бұрын
@@ALLABOUTELECTRONICS sir they are virtualy open can you plz explain as their is no potential difference between terminals so no current therefore open circuit and you said short i not get it can you plz explain
@ritikbhagat84565 жыл бұрын
@@mohdaqibminai5975 here they are virtually shorted which means that they have same potential without being actually connected, as the derivation done for Vd in the video, it is obtained that Vd is so small that it can be assumed to be zero so when the difference in voltages between two points is zero then it means they are at the same potential.